Incendiary explosive shell.



F. W. McGAW. INCENDMRY EXPLGSIVE SHELL.

APPLICAHON FILED MAR. I3. 918.

Patented Dec. 10, 1918.

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To all whom it may c ahcm:

sive is The general 011%l prm'ision of 8 9 signed to coqtam' nown thatI, Fhnunmck W; McG w, @rding thei iqllomhig is y to "incendiary? ekplowith abody and ,a headfwhich, when the bursting. charge is [ex ,rated,h ad I mitting t ewe 10in charge and thejifl the shell ofthe cglj Ioded,will be sepasaid "detachfi'ble body and head -permpma e charge within ngA further object is to pnm' ida improv'eci' meansAofpi'eventingathemoqidentalhdetqha ticgn of t e shall so, titely V t Otherebjiects will up.

of hei llmimifi x-i nv hhiqgz p nymedmwmgm-w in: in the course diim l'vertica l tienafview i j fshelljfioiastructed in Reord- Fi 2 isranelevatiqn-of 'theshell illustrategi hF mm Fig. 3 is -a, s ti i bn'the of415 mm 3t um rm.

f 7 Q1316 biqthoi he he v andvis urre nd of theub lrsting/ spl' m;;21;bea;ing;aga1nata spider 22fdis- Pdtented Dec. 10, 1015. 1818.; Ilath! Mo. "5175.

. q magie of thinner'metwl than the head ntqd wh ehiadetachahy connectedtheme: as dgsvgmmd 14. This body is ,eylindi1. xi in f rm and: has srew-threaded .enga meat at ts ends with htheieziterion screw-t reads IH 1. Dis osed within $11 real: endioiatlhebody is. a ength mama- Y+mall-y QIOSed by-a. [815-16. This gives a. primer. 'f ga "'ell'andgivesm s'ujf fiintflfikfifiisltnlhhxfliendofthe shall so thgiz gtzmav reeezveathe impact of thee piqdlnggasesin the, A cap piece 17 is disposedover-the plug 16 and the rear end of the shelhihe margins of the cappiece ing spun ortbentidown around the butt and vof h;l4,z as.at 18.

Disposed wl hiniithe bore 12 is agfiring pin 1? .ha'ving reammtdlytapering. head 20 Z PDSQQ .withiiuthbfflfllfin 1 12. .Thep h'ank-0f"the! fingupin fits the bore 121E851'MEWR PCIQfithGbOI'Q-iS reduced edby a coiled mmpression 8 Gave 15 hav- Fe ting chamber normi w ithinthechamber 11 and engaged iii any- -sui,teble menne15with the walls of thechamber. ring 21 holdmhe firing gegemeut :Withf-the interiorseremthreads at 1 is a'plate dr plug 2? in which is disposed a seeond=firing mmerfrgm -the vlhklig theinteri 86 hf thhih dv r n-mingle i p od d N h annulup fl, 4216. and-msti. ,z upumthis huge age! a .p unlit of*unnu' h t wada' fla 111 l ermest-wuds are mads of, 11 h and felt, butthe middle-wadis tively 90 hard mfitfilfilll- Theae wadegilmdefiflehrearward c gnibec, and; a jerwardf; chamber.

paekihiisurrounding the several reoaptaeles [end .of the bore the bodyof the shell;

' I have illustrated is particularlyuse'ful liqvfids y nition dumps or'inumtmn magazines or 2B and preventing them being broken throughaccidental jar. Extending centrally through the mass of gun cotton 29and centrall with relation to the several receptacles ..8 is a tube 30which may be made of any suitable material and may contain gun powder orother explosive. This tube at its upper end rests upon a plate 31 inturn resting upon flanges 32 and the upper end -of the tube is providedwith a printer or detoiiat'ing cap 33, .while the lower end of the tubeis closed by a plug of wadding 34. The tlctonating cap 33 is disposedimmediately beneath the small firip pin 24 and this in turn is disposedimme lately behind the firing pin 19.

it will thus be obvious that when the point of the shell strikes theobjective, the firing pin will be forced inward against the small firingpin 24 and this will be forced inwardagainst the detonating capexploding the gun powder or other explosive in the tube 80. Thisexplosion will cause the ex plosion of the high explosive 27 and also ofthe gun cotton. The relatively thin walls of the body 14 will be blownapart the frangible receptacles 28 will be broken and the inflammableliquid carried therein \\'il be set on fire and thrown in alldirections. The case or body will separate from the head upon thisexplosion while the head is force into the objective and the i rections.he shell casing is preferably provided with a plurality ofcircumferentially extending hands 35, these bands being rifled andacting to reduce friction when the shell is within the gun.

For the purpose of preventing accidental. detonation of the shell whenit is being handled or transported, I provide a protector. Thiscomprises a, plate 36 formed to 87 for the oint of the shell and havinga. plurality of ongitudinally extending members 38 which attheirextremities rest upon the, shell band 35 which is adjacent the junctionbetween the head and Means maybe provided for detachably on aging theseme'm beta 38 with the body 0 the shell-or with the shell band. Thisdevice prevents it solutely' any accidental projection of the firing pinagainst the detonatingeap so that the Shell may be dafely handled,without anv chance of explosion.

An incendiary shell of the character which or bombarding tankscontaining inflammable gases or fpr bombarding ammutories- It may bealso used ver effectively for bombarding trenches as re is more fearedthan any other destructive agent.

It will be obvious, of course, that this shell shell case is born intofragments which will be cast in all 1- thick sleeve, a

anemia ma be of any desired size to fit any desired caliber of gun andthat it may be made very cheaply.

Having described my invention what I claim is:

l. A shell of the character prising a conoidal hollow relatively thickhead, a hollow bodv of relatively thin material having screw-threadedengagement with the head, wedding disposed within the body andseparating it into two compartments, a plate mounted within the body andextending across the butt end of the head, a tube containing explosivematerial carried by said plate and extending through the wedding. aprimer mounted upon the forward end of the tube, explosive materialcarried in the rear compartment, a plurali y of frangible receptaclesdisposed in .the forward compartment and separated from each other by apacking of hi hly explosive mate'rial, a plug detachably engaged withthe rear end of the head and having a firing pin coactinz with theprimer. and a firing pin mounted in the head and extending to the pointthereof coacting with the fi named firing pin. and a spring urging sailast named firing pin outward away from the first named firing pin.

2. shell of the. character described comprising a'relativelv thick headand a. hollow relatively thin tubular bodv. the rear end of the bodvbeing rovided with a relatively thick sleeve. a plug of the sleeve.wedding forming a partition separating the bodv of the shell into twocom artments. a tube containing explosive material extending through thecenter of the forwardmost compartment and into the rear most compartmentand through said wadding. and provided with a primer at its forward end.fra ible receptacles containing inflammable need w thin the describedcon'r fluids and disn dorw'ard com artment concentricallv to the tube. aparking of explosive material isnosed within the bodv'and separating thefrangible receptacles from each other and from the bodv. and meanscarried in the head of the shell for detonating the explosive materialin the'tube.

3. A shell of the character described pomprising a relativelv thick headand a hollow relatively thin tubular bod of the body being provided withamelatively plug fitting in the rear: end of the sleeve, wedding-forminga artition separating the body of the shell Into. two compartments. atube containing explosive tnaterialcxtending through the center of theforwardmost compartment and into the rearmost compartment and thrmighsaid wadd-ing. and provided with ap'rhner at its for: ward end,flfingible receptacles containing inflammable fitting in the raar end'y. the rear end hide and disposed within the forward cmu mrhncutcuncontrivally t0 the tube, a pzwkmg of q-xplusivv nmtcx'ia] disposedwithin the Imdy and separating the fl'zmgihh: l'vcvpfaclns from vuchutllor and from the body. nu-zms carried in thv huaul of the shell fordotunuting the explosive mulq'ial in Hm tubv. and a llutac'hubiu pl'w[0("01 npurutiwly MIPPUI'UL] upon the body and having nu-mlwr vxtcmlingarrrnss the :lpvx of the shvll in spaced relation t-hr-rulo il' andpreventing the accidental (Intonation 0f the shell.

In testimony whereof I herounlo am; my Signature in the nrvscnce 0f twuwitness-0s.

FREDERICK W. MCGA'W. Witnesses LmvIs F. MlLLs, W. Mmms Mums.

